球形氧化铝的制备及其在丙烷脱氢催化剂中的应用

doi:10.11962/1006-4990.2019-0412

Abstract

Abstract:

Alumina precursors synthesized by neutralization method,hydrothermal method,alcoholic aluminium method and aluminium powder-hydrochloric acid reflux method were used as raw materials to prepare spherical alumina carriers which are marked as ZH、SR、ST and SOL respectively.The samples were characterized by strength tester,XRF,BET,SEM and NH₃-TPD,etc.The effect of the alumina support on the performance of Pt-Sn-K/Al₂O₃ catalysts in the dehydrogenation of propane was investigated.The results showed that the alumina precursors synthesized by different methods have been used to prepared spherical alumina supports with high strength.Especially the alumina supports prepared by hydrothermal method and alcoholic aluminium method also had large pore volume and moderate specific surface area.The preparation methods of precursors had greater influence on the acidity of catalysts,while neutralization catalyst was mainly weak-medium-strong acid center and other catalysts were mainly weak acid center,and the order of acidity was ZH-CAT>SOL-CAT>ST-CAT>SR-CAT.The evaluation results showed that the supports prepared by alcoholic aluminium method and hydrothermal method had good performance for propane dehydrogenation catalyst,which was equivalent to or even superior to the industrial catalyst.

Key words: dehydrogenation, propane, alumina, catalyst

CLC Number:

TQ133.1

Yang Wenjian,Meng Guangying,Li Xiaoyun,Sun Yanmin,Cai Qi,Guo Qiushuang. Preparation of spherical alumina and its application in PDH[J]. Inorganic Chemicals Industry, 2020, 52(6): 87-91.

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References 11

[1]	刘杰, 刘昌呈, 马爱增 , 等. Pt系催化剂在丙烷脱氢反应中的研究进展[J]. 石油学报:石油加工, 2015,31(5):1218-1231.
[2]	朱静 . 低碳烷烃脱氢负载型铂锡催化剂的研究[D]. 南京:东南大学, 2006.
[3]	Zangeneh F T, Mehrazma S, Sahebdelfar S . The influence of solvent on the performance of Pt-Sn/θ-Al₂O₃ propane dehydrogenation cat-alyst prepared by co-impregnation method[J]. Fuel Processing Te-chnology, 2013,109:118-123.
[4]	杨维慎, 吴荣安, 林励吾 . PtSn/Al₂O₃负载型催化剂丙烷脱氢性能的改进[J]. 石油化工, 1992,21(8):511-515.
[5]	郭松 . 丙烷脱氢多组分铂催化剂的研究[D]. 南京:南京大学, 2002.
[6]	Yu C L, Ge Q J, Xu H Y , et al. Effects of Ce addition on the Pt-Sn/γ-A1₂O₃ catalyst for propane dehydrogenation to propylene[J]. App-lied Catalysis A:General, 2006,315:58-67.
[7]	T·V·沃斯科博尼克弗, D·H·魏, J·W·A·萨驰特勒 , 等 .脱氢催化剂组合物:中国,1649672A[P]. 2005 -08-03.
[8]	Luo S, Wu N, Zhou B , et al. Effect of alumina support on the perfor-mance of Pt-Sn-K/γ-Al₂O₃ catalyst in the dehydrogenation of iso-butene[J]. Journal of Fuel Chemistry and Technology, 2013,41(12):1481-1487.
[9]	He S B, Sun C L, Bai Z W , et al. Dehydrogenation of long chain par-affins over supported Pt-Sn-K/Al₂O₃ catalysts:A study of the alu-mina support effect[J]. Applied Catalysis A:General, 2009,356(1):88-98.
[10]	杨文建, 孟广莹, 李晓云 , 等. 球形ZSM-5分子筛催化剂的制备及其在甲醇制芳烃反应中的应用[J]. 石油炼制与化工, 2017,48(4):87-91.
[11]	李波, 邵玲玲 . 氧化铝、氢氧化铝的XRD鉴定[J]. 无机盐工业, 2008,40(2):54-57.

样品	w（Al₂O₃）	w（Na₂O）	w（SiO₂）	w（Fe₂O₃）	w（Cl）
ZH	99.6	0.050	0.062	0.010	—
ST	99.8	0.005	0.010	—	—
SR	99.6	0.041	0.061	0.009	—
SOL	98.5	0.008	0.007	0.013	0.9

样品	孔容/（mL·g^-1）	比表面积/（m²·g^-1）	平均孔径/nm
ZH	0.59	141	16.7
SOL	0.79	81	39.0
ST	0.68	106	25.7
SR	0.66	89	29.7

样品	平均强度/N	表观密度/（g·mL^-1）	强度离散系数
ZH	51.2	0.67	0.17
SOL	34.1	0.58	0.26
ST	42.0	0.64	0.19
SR	38.7	0.64	0.21

样品	酸量/（mmol·g^-1）	样品	酸量/（mmol·g^-1）
ZH-CAT	0.294	SR-CAT	0.187
ST-CAT	0.225	SOL-CAT	0.240

催化剂	平均转化率/%	平均选择性/%	平均收率/%
ZH-CAT	41.8	93.2	39.0
SOL-CAT	42.0	94.5	39.7
ST-CAT	41.9	95.1	39.8
SR-CAT	42.0	95.2	40.0
DH-CAT	41.9	95.2	39.8

National Inorganic Salts Information Center

Inorganic Acid-Base-Salt Committee of CIESC

Preparation of spherical alumina and its application in PDH

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